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Over-savings and hyperbolic discounting

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  • Salanie, Francois
  • Treich, Nicolas

Abstract

Hyperbolic discounting models are widely seen as implying that consumers do not save enough, in accordance with the observed low rates of savings of some households. This paper qualifies this view by showing that hyperbolic consumers may ‘oversave' in the short run. The result extends to uncertainty on future income and does not depend on whether preferences are present-biased or future-biased. A generalized comparative statics analysis of self-control is introduced, and its relationship to the analysis of uncertainty on discount factors is emphasized.
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  • Salanie, Francois & Treich, Nicolas, 2006. "Over-savings and hyperbolic discounting," European Economic Review, Elsevier, vol. 50(6), pages 1557-1570, August.
  • Handle: RePEc:eee:eecrev:v:50:y:2006:i:6:p:1557-1570
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    5. Wigniolle, Bertrand, 2013. "Fertility in the absence of self-control," Mathematical Social Sciences, Elsevier, vol. 66(1), pages 71-86.
    6. Nicolas Drouhin, 2009. "Hyperbolic discounting may be time consistent," Economics Bulletin, AccessEcon, vol. 29(4), pages 2549-2555.
    7. Gao, Feng & Xi He, Alex & He, Ping, 2018. "A theory of intermediated investment with hyperbolic discounting investors," Journal of Economic Theory, Elsevier, vol. 177(C), pages 70-100.
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    9. Winkler, Ralph, 2009. "Now or Never: Environmental Protection under Hyperbolic Discounting," Economics - The Open-Access, Open-Assessment E-Journal (2007-2020), Kiel Institute for the World Economy (IfW), vol. 3, pages 1-22.
    10. Lin Zhang, 2013. "Saving and retirement behavior under quasi-hyperbolic discounting," Journal of Economics, Springer, vol. 109(1), pages 57-71, May.
    11. Caliendo, Frank N. & Findley, T. Scott, 2014. "Discount functions and self-control problems," Economics Letters, Elsevier, vol. 122(3), pages 416-419.
    12. Liya Liu & Yingjie Niu & Yuanping Wang & Jinqiang Yang, 2020. "Optimal consumption with time-inconsistent preferences," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 70(3), pages 785-815, October.
    13. Dionne, Georges & Gauthier, Geneviève & Hammami, Khemais & Maurice, Mathieu & Simonato, Jean-Guy, 2011. "A reduced form model of default spreads with Markov-switching macroeconomic factors," Journal of Banking & Finance, Elsevier, vol. 35(8), pages 1984-2000, August.
    14. Sophie Chemarin & Caroline Orset, 2011. "Innovation and Information Acquisition under Time Inconsistency and Uncertainty," The Geneva Risk and Insurance Review, Palgrave Macmillan;International Association for the Study of Insurance Economics (The Geneva Association), vol. 36(2), pages 132-173, December.
    15. Feigenbaum, James, 2016. "Equivalent representations of non-exponential discounting models," Journal of Mathematical Economics, Elsevier, vol. 66(C), pages 58-71.
    16. Jean-Pierre Drugeon & Bertrand Wigniolle, 2017. "On Time-Consistent Collective Choice with Heterogeneous Quasi- Hyperbolic Discounting," PSE Working Papers halshs-01662833, HAL.
    17. Savorelli, Luca, 2008. "Know Thyself: Self Awareness and Utility Misprediction in Discounting Models of Intertemporal Choice," AICCON Working Papers 57-2008, Associazione Italiana per la Cultura della Cooperazione e del Non Profit.
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